------------[ cut here ]------------
WARNING: CPU: 0 PID: 6950 at mm/vmscan.c:681 register_shrinker_prepared+0xe9/0x120
Modules linked in:
CPU: 0 PID: 6950 Comm: syz-executor.0 Not tainted 5.18.0-next-20220603 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:register_shrinker_prepared+0xe9/0x120
Code: 00 31 ff 89 c5 89 c6 e8 35 af e4 ff 85 ed 75 15 e8 5c b2 e4 ff 48 c7 c7 60 74 28 85 5b 5d 41 5c e9 dc 04 c8 ff e8 47 b2 e4 ff <0f> 0b eb e2 e8 ae c0 17 00 eb c0 48 89 df e8 34 c1 17 00 eb 89 e8
RSP: 0018:ffff888042fd7c88 EFLAGS: 00010216
RAX: 0000000000001ee5 RBX: ffff88804111a778 RCX: ffffc900007cb000
RDX: 0000000000040000 RSI: ffffffff815faa29 RDI: 0000000000000005
RBP: 00000000fffffff4 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff4 R11: 0000000000000001 R12: ffff88804111c778
R13: ffff88804111c150 R14: ffff88804111c000 R15: ffffffff8535e700
FS:  00007f9323f98700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faf23713000 CR3: 000000000962c000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 sget_fc+0x5c0/0x7a0
 get_tree_nodev+0x24/0x1d0
 hugetlbfs_get_tree+0x237/0x580
 vfs_get_tree+0x8e/0x2f0
 path_mount+0x131b/0x1f80
 __x64_sys_mount+0x27e/0x300
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f9326a22b19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9323f98188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f9326b35f60 RCX: 00007f9326a22b19
RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f9323f981d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffeea54cd4f R14: 00007f9323f98300 R15: 0000000000022000
 </TASK>
irq event stamp: 2011
hardirqs last  enabled at (2021): [<ffffffff812afc28>] __up_console_sem+0x78/0x80
hardirqs last disabled at (2040): [<ffffffff841a55cb>] sysvec_apic_timer_interrupt+0xb/0xc0
softirqs last  enabled at (946): [<ffffffff81167e03>] __irq_exit_rcu+0x113/0x170
softirqs last disabled at (823): [<ffffffff81167e03>] __irq_exit_rcu+0x113/0x170
---[ end trace 0000000000000000 ]---
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 6955 Comm: syz-executor.7 Tainted: G        W         5.18.0-next-20220603 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 _copy_from_user+0x2a/0x170
 memdup_user+0x65/0xd0
 strndup_user+0x70/0xe0
 __x64_sys_mount+0x133/0x300
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f9277f8104a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f92754f4fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9277f8104a
RDX: 00000000200000c0 RSI: 0000000020000140 RDI: 0000000000000000
RBP: 00007f92754f5040 R08: 00007f92754f5040 R09: 00000000200000c0
R10: 0000000000000020 R11: 0000000000000206 R12: 00000000200000c0
R13: 0000000020000140 R14: 00007f92754f5000 R15: 0000000020000180
 </TASK>
hugetlbfs: Bad value '"' for mount option 'size'

hugetlbfs: Bad value '"' for mount option 'size'

hugetlbfs: Bad value '"' for mount option 'size'